• The Journal of the Korea Contents Association
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• v.12 no.8
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• pp.274-282
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• 2012

This study conducted the following experiment to examine change of physicopsychological function on lumbar stabilization exercise(LSE) and virtual reality game training(Nintendo Wii Sport-NWS) to stroke patients subject for fall prevention. Psychological function was measured by falls efficacy with stroke patients and physical function was measured by static and dynamic balance on comparative analysis of pre, post exercise and each groups in 30 stroke patient subject. Static balance was measured by BBS, FRT, dynamic were measured by TUG, 10m walking test and falls efficacy with stroke patients was measured index of falls efficacy. These result lead us to the conclusion that each group were statistically improved at all physicopsychological test, but BBS, FRT, 10m walking test were more statistically improved at LSE group and falls efficacy with stroke patients were more improved at virtual reality game training group. Consequently, virtual reality game training would be lead to positive increment of physicopsychological function on stroke patient.

• Journal of Korea Game Society
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• v.3 no.2
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• pp.42-55
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• 2003

Domestic game companies are competitive in developing on-line 2D game contents. However, they have difficulties in maintaining the competitive edge in the area of on-line 3D game technologies owing to the limited funds and technologies. The 3D on-line game engine technologies we have intended to propose in this research are highly expected to be the key technologies ensuring the competitive edge over other countries. For this, we propose a full 3D online game engine that reflects the cutting edge technologies trend in the computer gaming industry. Our game engine is integrated with rendering and animation core technologies to visualize the game world, and provides stable network service through the Internet using server technologies.

• Journal of Broadcast Engineering
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• v.24 no.6
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• pp.974-982
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• 2019

Real-time 360 VR (Virtual Reality) stereo image acquisition technique based on game engine was proposed. However, GPU (Graphics Processing Unit) resource is not fully utilized due to bottlenecks. In this paper, we propose an improved GPU scheduling technique to solve the bottleneck of the existing technique and measure the performance of the proposed technique using the sample games of the commercial game engine. As a result, proposed technique showed an improvement of performance up to 70% and usage of GPU resources more evenly compared existing technique.

• Journal of Korea Multimedia Society
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• v.24 no.10
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• pp.1435-1448
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• 2021

Recent years, due to the direct or indirect damages caused by meteorological disasters more and more attention have been paid to natural disasters. At same time, diversified and multi-sensory interactive meteorological services is increasingly demanded. In this study, novel interactive meteorological service was compared with the traditional communication methods. Combining with case studies and systems creation, a virtual reality weather simulation framework was proposed, and a realistic virtual game environment providing real-time and historical weather information was created. The primary goal of this study is to build a weather display cabinet game system by using virtual reality technology, and promoting public's understanding of the principles of weather changes. With the interactive games in realistic scenarios, public's awareness for disasters prevention could be promoted. It is helping to change public's traditional understanding of meteorological theories, and will provide a more convenient way for the public to explore more effective weather forecasts. The simulation system is supported by VR technology. It was combined with Leap Motion interactive equipment to make popularization games for weather science. T-test data analysis showed that the application of VR technology in weather games has strong operability and interactivity.

• Journal of Digital Convergence
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• v.15 no.11
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• pp.463-470
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• 2017

Currently, virtual reality contents using VR images are spotlighted since they can be easily created and utilized. But because VR images are in a state of lack of interaction, there are limitations in their applications and usability.In order to overcome this problem, we propose a new method in which 360 degree panorama image and game engine are utilized to develop a high resolution of interactive VR service in real time. In particular, since the background image, which is represented by a form of panorama image, is pre-generated through a heavy rendering computation, it can be used to provide a immersive VR service with a relatively small amount of computation in run time on a low performance device. In order to show the effectiveness of our proposed method, an interactive game of a virtual zoo environment was implemented and illustrated showing that it can improve user interaction and immersion experience in a pretty good way.

• Journal of the Korea Computer Graphics Society
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• v.23 no.3
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• pp.87-94
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• 2017

Due to improvements in the capabilities of commercial game engines, there are increasing instances of applying game engines to scientific visualization applications. This study describes a case of creating a virtual reality application that visualizes medical volume data based on the Unity3D game engine. When using a game engine, there is an advantage that various functions required for an application are basically provided, such as depth sorting of translucent objects or virtual reality hardware support. On the other hand, there is a restriction that the structure of the application program should be modified to suit the characteristics of the game engine. This paper describes a method for visualizing medical volume data using the structure of a game engine. As a result, we were able to create a virtual reality scene that consisted of surface data and medical volume data fragments together. And we confirmed the possibility of game engine as a future medical simulation production tool.

• Proceedings of the IEEK Conference
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• 2000.11c
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• pp.193-196
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• 2000

In this paper, we present a model based 3d facial modeling method for virtual reality application using only one front of face photography. We extract facial feature using facial photography and modify mesh of the basic 3D model by the facial feature. After this , We use texture mapping for more similarity. By experiment, we know that the modeling technic is useful method for Movie, Virtual Reality Application, Game , Clothing Industry , 3D Video Conference.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2018.05a
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• pp.619-621
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• 2018

최근 가상현실을 활용한 게임콘텐츠들이 많이 제작되고 있다. 그러나 킬러콘텐츠가 부족한 상황이며 가상현실 게임을 즐기기 위해 사용하는 HMD(Head Mounted Display)는 멀미감 때문에 장시간 사용하기 힘들다. 본 연구에서는 멀미감을 최소화할 수 있는 퍼즐과 요즈음 오프라인에서 인기가 있는 방탕출 게임을 동시에 즐길 수 있는 콘텐츠를 제안한다. 특히, 개발한 콘텐츠는 Unreal Engine을 사용함으로서 게임에 현실성을 더욱 가미할 수 있었고 남녀노소 누구나 즐길 수 있는 범용적인 콘텐츠이다. Unreal Engine을 활용한 게임이 별로 많지 않아 본 콘텐츠는 향후 Unreal Engine를 활용한 게임을 제작하는데 도움이 될것이라 사료된다.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2017.10a
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• pp.663-664
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• 2017

최근 4차 산업혁명에서 주목을 받고 있는 가상현실(VR:Virtual Reality)은 시각, 청각, 촉각 등 인간의 오감을 활용한 상호작용을 통하여 공간적, 물리적 제약 때문에 현실세계에서는 직접 경험하지 못하는 상황을 사용자가 현실과 가상세계의 구분 없이 체험이 가능하여 국방, 의료, 교육 등에 활용이 되며 특히, 가상현실 스포츠나 게임 등의 개발이 활발하다. 본 연구에서는 가상현실 게임, 미디어 등에 손짓을 컴퓨터가 인식하게 할 수 있는 입력장치인 립모션(Leap motion)을 이용하여 VR다트 게임을 제안하고 구현한다. 다트게임은 방향 뿐 아니라 힘과 속도 등의 변수가 중요하며 바로 결과를 알 수 있고 위험하지 않는 장점으로 남녀노소 누구나 즐길 수 있는 VR스포츠게임이다.

• Proceedings of the Korean Society of Computer Information Conference
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• 2019.07a
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• pp.441-442
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• 2019

본 논문에서는 VR(Virtual Reality)라는 가상 현실 시스템 개발 툴인 Unreal Engine4을 사용하여 블루 프린트(Blue Print)로 야구 배팅 게임과 장애물 격파 피칭 게임을 개발하였다. 배팅 게임은 가상의 투수로부터 공 속도와 공이 랜덤하게 자동으로 투구된다. 이 때 사용자가 게임 콘트롤러(Controller)로 가상 배트를 이용하여 공을 타격하면 점수를 획득하는 게임이다. 장애물 격파 피칭 게임은 사용자가 게임 콘트롤러에 그립버튼을 눌러 데미지가 다른 공이 랜덤하게 바로 앞에 생성하여 이 공을 콘트롤러로 잡아서 장애물에 던져 격파하면 점수를 획득하는 게임이다.